.bbox {
  display: -webkit-box; /* 老版本语法: Safari, iOS, Android browser, older WebKit browsers. */
  display: -moz-box; /* 老版本语法: Firefox (buggy) */
  display: -ms-flexbox; /* 混合版本语法: IE 10 */
  display: -webkit-flex; /* 新版本语法: Chrome 21+ */
  display: -moz-flex;
  display: flex; /* 新版本语法: Opera 12.1, Firefox 22+ */
}

/*
   主轴对齐方式
*/

/*容器主轴居中对齐*/
.bbox.xcenter {
  -moz-box-pack: center; /*Firefox*/
  -webkit-box-pack: center; /*Safari,Opera,Chrome*/
  box-pack: center;
  -moz-justify-content: center;
  -webkit-justify-content: center;
  justify-content: center;
}

/*容器主轴左对齐（默认）*/
.bbox.xleft {
  -moz-box-pack: start; /*Firefox*/
  -webkit-box-pack: start; /*Safari,Opera,Chrome*/
  box-pack: start;
  -moz-justify-content: flex-start;
  -webkit-justify-content: flex-start;
  justify-content: flex-start;
}

/*容器主轴右对齐*/
.bbox.xright {
  -moz-box-pack: end; /*Firefox*/
  -webkit-box-pack: end; /*Safari,Opera,Chrome*/
  box-pack: end;
  -moz-justify-content: flex-end;
  -webkit-justify-content: flex-end;
  justify-content: flex-end;
}

/*容器主轴两端对齐*/
.bbox.xbetween {
  -moz-box-pack: justify; /*Firefox*/
  -webkit-box-pack: justify; /*Safari,Opera,Chrome*/
  box-pack: justify;
  -moz-justify-content: space-between;
  -webkit-justify-content: space-between;
  justify-content: space-between;
}

/*容器主轴平均分布*/
.bbox.xaround {
  -moz-justify-content: space-around;
  -webkit-justify-content: space-around;
  justify-content: space-around;
}

/*
 交叉轴对齐方式
*/

/*顶部对齐*/
.bbox.ytop {
  -moz-box-align: start; /*Firefox*/
  -webkit-box-align: start; /*Safari,Opera,Chrome*/
  box-align: start;
  -moz-align-items: flex-start;
  -webkit-align-items: flex-start;
  align-items: flex-start;
}

/*底部对齐*/
.bbox.ybottom {
  -moz-box-align: end; /*Firefox*/
  -webkit-box-align: end; /*Safari,Opera,Chrome*/
  box-align: end;
  -moz-align-items: flex-end;
  -webkit-align-items: flex-end;
  align-items: flex-end;
}

/*居中对齐*/
.bbox.ycenter {
  -moz-box-align: center; /*Firefox*/
  -webkit-box-align: center; /*Safari,Opera,Chrome*/
  box-align: center;
  -moz-align-items: center;
  -webkit-align-items: center;
  align-items: center;
}

.bbox.ybaseline {
  -moz-box-align: baseline; /*Firefox*/
  -webkit-box-align: baseline; /*Safari,Opera,Chrome*/
  box-align: baseline;
  -moz-align-items: baseline;
  -webkit-align-items: baseline;
  align-items: baseline;
}

.bbox.ystretch {
  -moz-box-align: stretch; /*Firefox*/
  -webkit-box-align: stretch; /*Safari,Opera,Chrome*/
  box-align: stretch;
  -moz-align-items: stretch;
  -webkit-align-items: stretch;
  align-items: stretch;
}

/*
*水平垂直居中
*/
.bbox.xycenter {
  -moz-box-pack: center; /*Firefox*/
  -webkit-box-pack: center; /*Safari,Opera,Chrome*/
  box-pack: center;
  -moz-justify-content: center;
  -webkit-justify-content: center;
  justify-content: center;
  -moz-box-align: center; /*Firefox*/
  -webkit-box-align: center; /*Safari,Opera,Chrome*/
  box-align: center;
  -moz-align-items: center;
  -webkit-align-items: center;
  align-items: center;
}

/*
 *子元素显示方向
*/
.bbox.lr {
  -moz-box-orient: vertical;
  -moz-box-direction: normal; /*Firefox*/
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal; /*Safari,Opera,Chrome*/
  box-orient: vertical;
  box-direction: normal;
  -moz-flex-direction: row;
  -webkit-flex-direction: row;
  flex-direction: row;
}

.bbox.rl {
  -moz-box-orient: vertical;
  -moz-box-direction: reverse; /*Firefox*/
  -webkit-box-orient: vertical;
  -webkit-box-direction: reverse; /*Safari,Opera,Chrome*/
  box-orient: vertical;
  box-direction: reverse;
  -moz-flex-direction: row-reverse;
  -webkit-flex-direction: row-reverse;
  flex-direction: row-reverse;
}

.bbox.tb {
  -moz-box-direction: normal; /*Firefox*/
  -webkit-box-direction: normal; /*Safari,Opera,Chrome*/
  box-direction: normal;
  -moz-box-orient: horizontal; /*Firefox*/
  -webkit-box-orient: horizontal; /*Safari,Opera,Chrome*/
  box-orient: horizontal;
  -moz-flex-direction: column;
  -webkit-flex-direction: column;
  flex-direction: column;
}

.bbox.bt {
  -moz-box-direction: reverse; /*Firefox*/
  -webkit-box-direction: reverse; /*Safari,Opera,Chrome*/
  box-direction: reverse;
  -moz-box-orient: horizontal; /*Firefox*/
  -webkit-box-orient: horizontal; /*Safari,Opera,Chrome*/
  box-orient: horizontal;
  -moz-flex-direction: column-reverse;
  -webkit-flex-direction: column-reverse;
  flex-direction: column-reverse;
}

/*
* 换行
*/
.bbox.nowrap {
  -moz-box-lines: single; /*Firefox*/
  -webkit-box-lines: single; /*Safari,Opera,Chrome*/
  box-lines: single;
  -moz-flex-wrap: nowrap;
  -webkit-flex-wrap: nowrap;
  flex-wrap: nowrap;
}

.bbox.wrap {
  -moz-box-lines: multiple; /*Firefox*/
  -webkit-box-lines: multiple; /*Safari,Opera,Chrome*/
  box-lines: multiple;
  -moz-flex-wrap: wrap;
  -webkit-flex-wrap: wrap;
  flex-wrap: wrap;
}

.bbox.wrap-reverse {
  -moz-flex-wrap: wrap-reverse;
  -webkit-flex-wrap: wrap-reverse;
  flex-wrap: wrap-reverse;
}

/*
*多主轴对齐
*/
.bbox.ytop-m {
  -moz-align-content: flex-start;
  -webkit-align-content: flex-start;
  align-content: flex-start;
}

.bbox.ycenter-m {
  -moz-align-content: center;
  -webkit-align-content: center;
  align-content: center;
}

.bbox.ybottom-m {
  -moz-align-content: flex-end;
  -webkit-align-content: flex-end;
  align-content: flex-end
}

.bbox.ybetween-m {
  -moz-align-content: space-between;
  -webkit-align-content: space-between;
  align-content: space-between;
}

.bbox.yaround-m {
  -moz-align-content: space-around;
  -webkit-align-content: space-around;
  align-content: space-around;
}

.bbox.ystretch-m {
  -moz-align-content: stretch;
  -webkit-align-content: stretch;
  align-content: stretch;
}

/**
**子元素属性
**/
.bbox .fauto {
  -webkit-box-flex: auto; /* OLD - iOS 6-, Safari 3.1-6 */
  -moz-box-flex: auto; /* OLD - Firefox 19- */
  -webkit-flex: auto; /* Chrome */
  -ms-flex: auto; /* IE 10 */
  flex: auto; /* NEW, Spec - Opera 12.1, Firefox 20+ */
}

.bbox .fnone {
  -webkit-box-flex: none; /* OLD - iOS 6-, Safari 3.1-6 */
  -moz-box-flex: none; /* OLD - Firefox 19- */
  -webkit-flex: none; /* Chrome */
  -ms-flex: none; /* IE 10 */
  flex: none; /* NEW, Spec - Opera 12.1, Firefox 20+ */
}

.bbox .f0 {
  -webkit-box-flex: 0; /* OLD - iOS 6-, Safari 3.1-6 */
  -moz-box-flex: 0; /* OLD - Firefox 19- */
  -webkit-flex: 0; /* Chrome */
  -ms-flex: 0; /* IE 10 */
  flex: 0; /* NEW, Spec - Opera 12.1, Firefox 20+ */
}

.bbox .f1 {
  -webkit-box-flex: 1; /* OLD - iOS 6-, Safari 3.1-6 */
  -moz-box-flex: 1; /* OLD - Firefox 19- */
  -webkit-flex: 1; /* Chrome */
  -ms-flex: 1; /* IE 10 */
  flex: 1; /* NEW, Spec - Opera 12.1, Firefox 20+ */
}

.bbox .f2 {
  -webkit-box-flex: 2; /* OLD - iOS 6-, Safari 3.1-6 */
  -moz-box-flex: 2; /* OLD - Firefox 19- */
  -webkit-flex: 2; /* Chrome */
  -ms-flex: 2; /* IE 10 */
  flex: 2; /* NEW, Spec - Opera 12.1, Firefox 20+ */
}

.bbox .f3 {
  -webkit-box-flex: 3; /* OLD - iOS 6-, Safari 3.1-6 */
  -moz-box-flex: 3; /* OLD - Firefox 19- */
  -webkit-flex: 3; /* Chrome */
  -ms-flex: 3; /* IE 10 */
  flex: 3; /* NEW, Spec - Opera 12.1, Firefox 20+ */
}

.bbox .f4 {
  -webkit-box-flex: 4; /* OLD - iOS 6-, Safari 3.1-6 */
  -moz-box-flex: 4; /* OLD - Firefox 19- */
  -webkit-flex: 4; /* Chrome */
  -ms-flex: 4; /* IE 10 */
  flex: 4; /* NEW, Spec - Opera 12.1, Firefox 20+ */
}

.bbox .f5 {
  -webkit-box-flex: 5; /* OLD - iOS 6-, Safari 3.1-6 */
  -moz-box-flex: 5; /* OLD - Firefox 19- */
  -webkit-flex: 5; /* Chrome */
  -ms-flex: 5; /* IE 10 */
  flex: 5; /* NEW, Spec - Opera 12.1, Firefox 20+ */
}

.bbox .f6 {
  -webkit-box-flex: 6; /* OLD - iOS 6-, Safari 3.1-6 */
  -moz-box-flex: 6; /* OLD - Firefox 19- */
  -webkit-flex: 6; /* Chrome */
  -ms-flex: 6; /* IE 10 */
  flex: 6; /* NEW, Spec - Opera 12.1, Firefox 20+ */
}

.bbox .f7 {
  -webkit-box-flex: 7; /* OLD - iOS 6-, Safari 3.1-6 */
  -moz-box-flex: 7; /* OLD - Firefox 19- */
  -webkit-flex: 7; /* Chrome */
  -ms-flex: 7; /* IE 10 */
  flex: 7; /* NEW, Spec - Opera 12.1, Firefox 20+ */
}

.bbox .f8 {
  -webkit-box-flex: 8; /* OLD - iOS 6-, Safari 3.1-6 */
  -moz-box-flex: 8; /* OLD - Firefox 19- */
  -webkit-flex: 8; /* Chrome */
  -ms-flex: 8; /* IE 10 */
  flex: 8; /* NEW, Spec - Opera 12.1, Firefox 20+ */
}

.bbox .f9 {
  -webkit-box-flex: 9; /* OLD - iOS 6-, Safari 3.1-6 */
  -moz-box-flex: 9; /* OLD - Firefox 19- */
  -webkit-flex: 9; /* Chrome */
  -ms-flex: 9; /* IE 10 */
  flex: 9; /* NEW, Spec - Opera 12.1, Firefox 20+ */
}

/*
 * 子元素单独对齐方式
 */

.bbox .selftop {
  -webkit-ailgn-self: flex-start;
  -moz-align-self: flex-start;
  align-self: flex-start;
}

.bbox .selfbottom {
  -webkit-ailgn-self: flex-end;
  -moz-align-self: flex-end;
  align-self: flex-end;
}

.bbox .selfcenter {
  -webkit-ailgn-self: center;
  -moz-align-self: center;
  align-self: center;
}

.bbox .selfbaseline {
  -webkit-ailgn-self: baseline;
  -moz-align-self: baseline;
  align-self: baseline;
}

.bbox .selfstretch {
  -webkit-ailgn-self: stretch;
  -moz-align-self: stretch;
  align-self: stretch;
}